[PATCH v22 06/24] soc: mediatek: add mtk_mmsys_update_bits API

[Rex-BC Chen]

On Thu, 2022-05-26 at 19:02 +0800, Nancy.Lin wrote:
> Add mtk_mmsys_update_bits API. Simplify code for update  mmsys reg.
> It is a preparation for adding support for mmsys config API.
> 
> Signed-off-by: Nancy.Lin <nancy.lin at mediatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno at collabora.com>
> Tested-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno at collabora.com>
> ---

[Bo-Chen: Test on MT8195 Tomato Chromebook with external display]
Tested-by: Bo-Chen Chen <rex-bc.chen at mediatek.com>